/Engine/Plugins/Runtime/AR/AppleAR/AppleARKitFaceSupport/Source/AppleARKitFaceSupport/Public/AppleARKitFaceMeshComponent.h
Sets the amount for a given blend shape
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Components|ARFaceMesh", Meta=(DisplayName="Set the value of a Blend Shape")) void SetBlendShapeAmount ( EARFaceBlendShape BlendShape, float Amount )